Suction cleaning device



July 17, 1928.

w. A. FRANTZ SUCTION CLEANING DEVICE Filed Oct. 10, 1924 2 Sheets-Sheet l A TIFF/VETS July 17, 1928.

W. A. FRANTZ SUCTiON CLEANING DEVICE Filed Oct. 10, 1924 2 Sheets-Sheet 2 Fiy. 4

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WAFramz I wvavrm Patented July 17, 1928.

UNITED STATES 1,677,625 PATENT OFFICE.

. 8 WALTER A. FRANTZ, F CLEVELAND, OHIO, ASSIGNOR TO THE APEX ELECTRICAL MANUFACTURING COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

* SUCTION CLEANING DEVICE.

Application filed October 10, 1924. Serial 1T0. 742,757.

This invention relates to suction cleaners designed for the cleaning of rugs,carpets and other floor coverings and has for its object the provision of a new and improved 0 beater or agitator for the same; the provision of a new, impro'ved, and simplified means for operating such an agitator; the provision of an agitator and operating device therefo-r which shall vibrate and beat the rug or carpet thoroughly while itself containing a minimum number of movlng parts, be free from liability of disarrangement, and have no adverse effect upon the operation of the fan or other suction'producing device;

while further objects and advantages of the invention will become apparent as the description proceeds.

In the drawings accompanying and forming a part of this application I have illustrated certain physical forms in which my inventive idea can be embodied, although it willbe understood that these forms constitute only a few of the actual structures by which my improvements can be utilized. Fig. 1 is a front plan view and Fig. 2 a side elevation of a well known form of cleaner embodying my improvements; Fig. 3 is a bottom plan view of the" collecting nozzle showing my. improved agitating device placed therein; Fig. 4 is a sectional view corresponding to the line 44 of Fig. 3; Fig. 5 is a bottom plan view illustrating in modified form the agitating device; Fig. 6 is a detail sectional view corresponding to the line 66 of Fig. 5; and Fig. 7 is a detail sectional view corresponding to the line 77 of Fig. 5.

For purposes of illustration I have selected a typical form of machine comprising a fan chamber 1, collecting nozzle 2, and motor housing 3 rigidly connected together and suitably supported by floor wheels 55 in such wi e that the downturned inlet mouth 6 with which the nozzle is provided shall be presented close to and parallel with the supporting surface. The operation of a suitable pumping device such as a rotatable fan A inside the chamber 1 sucks air through the nozzle and ejects it through member of some suitable type which member is caused to operate electro-magnetically by means of a suitable coil carried by the nozzle in operative relation thereto. In the embodiment shown in Figs. 1 to 4 this member comprises an oblong frame having parallel spaced side members 88 connected by end members 9 which are formed, the one with the trunnion 10 fitting a bearin in the nozzle, and the other with a suita le aperture for the reception of av pivot screw 11. These arms are arranged one adjacent to each lip of the inlet mouth, the space between the same being suificient for the passage of articles up to the largest size which ought to be allowed to enter a cleaner. To the middle point of one of these bars is attached a suitable armature 12, while the other bar carries one or more springs 13 which rest u on the nozzle interior and tend to restore t e position of the frame after having been displaced by the armature. The nozzle is preferably made of non-magnetic materiah Carried by the exterior of the nozzle in operative relation to this armature is an electro-magnetic device comprising a lami-- nated field frame 15 and current coil 16. In the form shown in Figs. lto 4: this field frame,has the shape of the letter E, thereby producing three poles '17, 18, and 19 the extremltles of which are located in suitable apertures 1n the nozzle wall in proper proximity to the'armature 12; although it will be understood that the middle pole can equally be made a part of the armature as will next be described.

In the form illustrated in Figs. 5, 6, and 7, the frame consists of side members 88 as before connected by end members 9 but these, instead of being pivoted to the ends of the nozzle, are attached thereto by suitable springs 2020 so that the frame can vibrate up and down as a whole; and the armature 22 is made of magnetic metal attached to the middle of the frameas shown in Fig. 6 so as to rise and fall through an aperture 23 in the top of thenozzle.

In case of the use of alternating currents, particularly those of low frequency I have found it possible to dispense with all interrupting devices and trust merely the alternations of the current to vibrate the frame.

In case, however, a slower speed is desired or direct current operation is necessary I employ a suitable make and break device such as the contact members 24, 25 illustrated in Fig. 6.

In the present embodiment I have shown a nozzle of the type described and claimed in the patents to William V. Orr, issued January 7, 1917, No. 1,210,524 and No. 1,210,525, wherein the nozzle is divided into two channels leaving a space 26, between the same and in this space 26 I mount a suitable switch 30 having a suitable handle 31 projecting through the top of the nozzle. This cavity also affords a convenient channel for the wires 32 which lead from the electric motor to the coil 16; although I do not limit myself to this type of cleaner casing since the wire 33 shown at Fig. 6 is not connected in this manner. It is advantageous, however, to.have the vibrator; connected to the motor in such a way as always to be still when the motor is at rest, and when the motor is operating to be under the control of its own independent switch.

It will be understood that many changes can be made within the scope of my invention, wherefore I do not limit myself to any details of construction, arrangement, .or design or parts except as specifically recited in my several claims which I desire may be construed each without reference to limitations contained in other claims.

Having thus described my invention what I claim is:

1. The combination with a suction cleaner casing having av collecting nozzle, of an agitating device therein, an electromagnetic member rigidly connected to said agitating device, a companion electromagnetic member carried by said casing in operative magnetic relation with said first member, and means independent of said electromagnetic niembers for producing suction in said nozz e.

2. The combination with a suction cleaning nozzle of a field member of magnetic material carried thereby, an agitating device operatively mounted in the inlet mouth, and an individual armature directly connected to said device and operatively presented to said field member.

and motor, and a switch in said connection.

5. The combination with a suction cleaner nozzle of a vertically vibratable beater therein, an armature carried by said beater, a field frame carried by said nozzle above said beater in operative relation to said armature, and a current coil carried by said nozzlc.'

6. The combination with a suction cleaner nozzle having anarrow elongated inlet mouth, of a beater therein comprising a frame having spaced side members adjacent the opposite lips and other members connecting said side members, the space between said side members constituting a dust passage, and means for vibrating said side members against the carpet.

7. The combination with ,a suction cleaner nozzle made of non-magnetic material and having an inlet mouth therein, of a field frame secured to the exterior of said nozzle, an. agitating device inside said inlet mouth,

an armature carried by said agitating deviceinside said nozzle in position to be operated by said field frame to move said device in one direction,and means acting to move said device in the opposite direction.

In testimony whereof, I hereunto aflix my signature.

WALTER A. FRANTZ. 

